I spent about two hours last night looking, but couldn't find anything but this guy saying it's true, no research, no actual study. He mentions a paper, but it doesn't seem to exist and he is just misreading the one he's looking at. If you listen to what he says, he just doesn't understand what he's reading.

I spent about two hours last night looking, but couldn't find anything but this guy saying it's true, no research, no actual study. He mentions a paper, but it doesn't seem to exist.